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saleae-logic16: Use new library software trigger.

This commit is contained in:
Bert Vermeulen 2014-05-29 22:16:58 +02:00
parent 335122f07d
commit 863357fb10
3 changed files with 72 additions and 29 deletions
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27
hardware/saleae-logic16/api.c
View File

@ -49,12 +49,21 @@ static const int32_t hwcaps[] = {
SR_CONF_LOGIC_ANALYZER,
SR_CONF_SAMPLERATE,
SR_CONF_VOLTAGE_THRESHOLD,
SR_CONF_TRIGGER_MATCH,
/* These are really implemented in the driver, not the hardware. */
SR_CONF_LIMIT_SAMPLES,
SR_CONF_CONTINUOUS,
};
static const int32_t soft_trigger_matches[] = {
SR_TRIGGER_ZERO,
SR_TRIGGER_ONE,
SR_TRIGGER_RISING,
SR_TRIGGER_FALLING,
SR_TRIGGER_EDGE,
};
static const char *channel_names[] = {
"0", "1", "2", "3", "4", "5", "6", "7", "8",
"9", "10", "11", "12", "13", "14", "15",
@ -562,6 +571,11 @@ static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi,
}
*data = g_variant_builder_end(&gvb);
break;
case SR_CONF_TRIGGER_MATCH:
*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
soft_trigger_matches, ARRAY_SIZE(soft_trigger_matches),
sizeof(int32_t));
break;
default:
return SR_ERR_NA;
}
@ -573,7 +587,7 @@ static void abort_acquisition(struct dev_context *devc)
{
int i;
devc->num_samples = -1;
devc->sent_samples = -1;
for (i = devc->num_transfers - 1; i >= 0; i--) {
if (devc->transfers[i])
@ -686,7 +700,7 @@ static int receive_data(int fd, int revents, void *cb_data)
tv.tv_sec = tv.tv_usec = 0;
libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv);
if (devc->num_samples == -2) {
if (devc->sent_samples == -2) {
logic16_abort_acquisition(sdi);
abort_acquisition(devc);
}
@ -699,6 +713,7 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
struct dev_context *devc;
struct drv_context *drvc;
struct sr_usb_dev_inst *usb;
struct sr_trigger *trigger;
struct libusb_transfer *transfer;
unsigned int i, timeout, num_transfers;
int ret;
@ -719,11 +734,17 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
}
devc->cb_data = cb_data;
devc->num_samples = 0;
devc->sent_samples = 0;
devc->empty_transfer_count = 0;
devc->cur_channel = 0;
memset(devc->channel_data, 0, sizeof(devc->channel_data));
if ((trigger = sr_session_trigger_get())) {
devc->stl = soft_trigger_logic_new(sdi, trigger);
devc->trigger_fired = FALSE;
} else
devc->trigger_fired = TRUE;
timeout = get_timeout(devc);
num_transfers = get_number_of_transfers(devc);
size = get_buffer_size(devc);

70
hardware/saleae-logic16/protocol.c
View File

@ -590,6 +590,10 @@ static void finish_acquisition(struct dev_context *devc)
devc->num_transfers = 0;
g_free(devc->transfers);
g_free(devc->convbuffer);
if (devc->stl) {
soft_trigger_logic_free(devc->stl);
devc->stl = NULL;
}
}
static void free_transfer(struct libusb_transfer *transfer)
@ -731,7 +735,8 @@ SR_PRIV void logic16_receive_transfer(struct libusb_transfer *transfer)
struct sr_datafeed_packet packet;
struct sr_datafeed_logic logic;
struct dev_context *devc;
size_t converted_length;
size_t new_samples, num_samples;
int trigger_offset;
devc = transfer->user_data;
@ -739,7 +744,7 @@ SR_PRIV void logic16_receive_transfer(struct libusb_transfer *transfer)
* If acquisition has already ended, just free any queued up
* transfer that come in.
*/
if (devc->num_samples < 0) {
if (devc->sent_samples < 0) {
free_transfer(transfer);
return;
}
@ -749,7 +754,7 @@ SR_PRIV void logic16_receive_transfer(struct libusb_transfer *transfer)
switch (transfer->status) {
case LIBUSB_TRANSFER_NO_DEVICE:
devc->num_samples = -2;
devc->sent_samples = -2;
free_transfer(transfer);
return;
case LIBUSB_TRANSFER_COMPLETED:
@ -775,7 +780,7 @@ SR_PRIV void logic16_receive_transfer(struct libusb_transfer *transfer)
* The FX2 gave up. End the acquisition, the frontend
* will work out that the samplecount is short.
*/
devc->num_samples = -2;
devc->sent_samples = -2;
free_transfer(transfer);
} else {
resubmit_transfer(transfer);
@ -785,31 +790,46 @@ SR_PRIV void logic16_receive_transfer(struct libusb_transfer *transfer)
devc->empty_transfer_count = 0;
}
converted_length = convert_sample_data(devc, devc->convbuffer,
devc->convbuffer_size, transfer->buffer,
transfer->actual_length, devc->unitsize);
new_samples = convert_sample_data(devc, devc->convbuffer,
devc->convbuffer_size, transfer->buffer,
transfer->actual_length, devc->unitsize);
if (converted_length > 0) {
/* Cap sample count if needed. */
if (devc->limit_samples &&
(uint64_t)devc->num_samples + converted_length
> devc->limit_samples) {
converted_length =
devc->limit_samples - devc->num_samples;
if (new_samples > 0) {
if (devc->trigger_fired) {
/* Send the incoming transfer to the session bus. */
packet.type = SR_DF_LOGIC;
packet.payload = &logic;
if (devc->limit_samples &&
new_samples > devc->limit_samples - devc->sent_samples)
new_samples = devc->limit_samples - devc->sent_samples;
logic.length = new_samples * devc->unitsize;
logic.unitsize = devc->unitsize;
logic.data = devc->convbuffer;
sr_session_send(devc->cb_data, &packet);
devc->sent_samples += new_samples;
} else {
trigger_offset = soft_trigger_logic_check(devc->stl,
devc->convbuffer, new_samples * devc->unitsize);
if (trigger_offset > -1) {
packet.type = SR_DF_LOGIC;
packet.payload = &logic;
num_samples = new_samples - trigger_offset;
if (devc->limit_samples &&
num_samples > devc->limit_samples - devc->sent_samples)
num_samples = devc->limit_samples - devc->sent_samples;
logic.length = num_samples * devc->unitsize;
logic.unitsize = devc->unitsize;
logic.data = devc->convbuffer + trigger_offset * devc->unitsize;
sr_session_send(devc->cb_data, &packet);
devc->sent_samples += num_samples;
devc->trigger_fired = TRUE;
}
}
/* Send the incoming transfer to the session bus. */
packet.type = SR_DF_LOGIC;
packet.payload = &logic;
logic.length = converted_length * devc->unitsize;
logic.unitsize = devc->unitsize;
logic.data = devc->convbuffer;
sr_session_send(devc->cb_data, &packet);
devc->num_samples += converted_length;
if (devc->limit_samples &&
(uint64_t)devc->num_samples >= devc->limit_samples) {
devc->num_samples = -2;
(uint64_t)devc->sent_samples >= devc->limit_samples) {
devc->sent_samples = -2;
free_transfer(transfer);
return;
}

4
hardware/saleae-logic16/protocol.h
View File

@ -63,7 +63,7 @@ struct dev_context {
/* EEPROM data from address 8. */
uint8_t eeprom_data[8];
int64_t num_samples;
int64_t sent_samples;
int submitted_transfers;
int empty_transfer_count;
int num_channels, cur_channel, unitsize;
@ -71,6 +71,8 @@ struct dev_context {
uint16_t channel_data[16];
uint8_t *convbuffer;
size_t convbuffer_size;
struct soft_trigger_logic *stl;
gboolean trigger_fired;
void *cb_data;
unsigned int num_transfers;